app.config(function ($stateProvider,$urlRouterProvider) {
    $stateProvider
        .state("one",{
            url:"/one",
            templateUrl:"./one.html"
        })
        .state("two",{
            url:"/two",
            templateUrl:"./two.html"
        })
        .state("three",{
            url:"/three",
            templateUrl:"./three.html"
        })
    $urlRouterProvider.otherwise("one")
})